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Fitbit SpO2 watch face makes it easier to track blood oxygenation

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While almost all of us know how oxygen is vital to life, few probably realize that the oxygen is actually distributed throughout our body via our blood. In addition to metrics like heart rate or even ECG, blood oxygen saturation has become one of the easiest ways to detect abnormalities in our bodies. Fitbit is now making that even easier with a new “Signature” SpO2 clock face designed exactly for that purpose.

SpO2, a.k.a. blood oxygenation a.k.a. blood oxygen saturation, refers to just how much oxygen our blood is able to carry from our longs to the rest of our body. This should be in the high 90% or above figures, especially when you’re awake. Those levels are also mostly constant throughout our lives, even if they differ from person to person, so any significant dip could indicate something wrong with our health.

Measuring blood oxygenation has become easy and painless with pulse oximeters and some smartphones, like Samsung’s, have actually sported such sensors in the past. These work by shining infrared light on blood vessels under the skin and measuring the saturation of red color as an indication of oxygen saturation.

Fitbit’s smartwatches have long had such sensors, of course, but what’s new is a watch face dedicated to monitoring your SpO2 level during sleep. After downloading the watch face, users simply need to switch to it when they go to bed and it will start measuring while you snooze. You get your results an hour after you wake up.

The Signature SpO2 clock face will be available for the Fitbit Ionic, Fitbit Versa, and the new Fitbit Sense, though it might not be available yet for all markets. The company does warn users that it isn’t intended to diagnose or treat medical conditions but to give wearers more of a general idea about the current state of their health.

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Realme’s Next Premium Tablet Looks To Have An Unusual Design

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Even though we still have six days before the Realme Pad X launches in China, some of the specs of the Realme Pad X have already been confirmed by Realme’s CMO Xu Qi Chase, GSMArena claims. We know that this mid-range tablet will get the Qualcomm Snapdragon 870 chipset. This also means that the Realme Pad X will become the first Realme tablet to feature 5G connectivity. While the CMO did not reveal the rest of the specs, there’s been rumors about the likelihood of the Realme Pad fetting a QHD+ display that could also support a 120 Hz refresh rate.

From the images, it is also evident that the Realme Pad X gets a single rear-facing camera that is situated on an unusually large camera bump. There is a smaller circle below the rear camera with a prominent “AI” logo. The tablet also skips an LED flash for low-light situations.

Designwise, the Realme Pad looks like a contemporary tablet with small bezels and flat sides. One of the invites also showcases the Realme Pad X being used with a stylus. It remains to be seen if this accessory will be part of the retail package or an optional extra. With the launch date for this product a week away, there is a good chance that we could have additional details about the Realme Pad X before the official launch.

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Snapdragon 8+ Gen 1 Revealed As The Heart Of Your Next Android Flagship Phone

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Qualcomm’s latest flagship processor continues to be based on a 4nm manufacturing process — albeit this time from TSMC. This change has allowed Qualcomm to increase the GPU and CPU clock speeds by up to 7%. The result is that the Prime Cortex X2 is now clocked at 3.2 GHz (as opposed to 3 GHz on the Snapdragon 8 Gen 1). Similarly, the 3x Cortex A710 core now clocks at 2.8 GHz (compared to 2.5 GHz earlier).

Then we have the 4x Cortex A-510 efficiency cores that also see a jump from 1.8 GHz to 2 GHz. While Qualcomm is yet to reveal the clock speeds for the Adreno GPU on the Snapdragon 8+ Gen1, they already claim a 10% higher clock speed in the promotional materials.

The rest of the hardware on the Snapdragon 8+ Gen 1 is similar to that of its predecessor — and this includes the X65 integrated modem as well. The new chip continues to support 3200 MHz LPDDR5 RAM, and the ISP used is the same, with support for 200 MP resolution, 8K video capture, and 64 MP burst capture. In terms of encoding, the chip retains support for Dolby Vision, HDR10+, HDR10, and HLG. A glaring omission, this time around too, is the lack of support for the AV1 codec.

In simpler terms, apart from the faster performance on account of the supposedly better manufacturing process, the Snapdragon 8+ Gen 1 does not add anything over its predecessor in terms of additional features.

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Why Black Holes Slow Down Time As You Get Closer To One

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To understand why time slows down as an object gets closer to a black hole, it is necessary to understand what time dilation is. Live Science explains that Einstein — obsessed with space and time — was the first to realize that time was relative. After more than a decade of work, Einstein published his general theory of relativity in 1915, shocking the Newtonian establishment and revolutionizing science. Einstein argued that while the laws of physics are constant throughout the universe (via The Conversation), speed or motion, space, and time are not constant but relative. Relative to what? To the point of observation or observer.

Einstein often spoke about trains and how people on and off moving trains would perceive time and speed differently. He cited, for example, that a speeding train would move much faster for a person standing on the side of the track than for a person chasing the train on another train running parallel to it. This has fueled a range of wild experiments with clocks and atomic clocks, and the answers proved Einstein was right: time is not constant and it can dilate.

But to be scientifically accurate, time does not change because of where an observer may be; it changes due to changes in gravity. Scientists have proven these changes in time by measuring atomic clocks on top of buildings and on ground levels, or on orbiting satellites and on Earth. So, if gravity can change time, what would happen to time in the presence of the massive gravitational forces of a black hole?

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